docs: def build_list_regex(self):
          """Return the regex for the folder which contains the list of builds."""
          regex = 'tinderbox-builds/%(BRANCH)s-%(PLATFORM)s%(L10N)s%(DEBUG)s/'
  
          return regex % {
              'BRANCH': self.branch,
              'PLATFORM': '' if self.locale_build else self.platform_regex,
              'L10N': 'l10n' if self.locale_build else '',
              'DEBUG': '-debug' if self.debug_build else ''}